CN105545284B - One kind is with brill gamma imaging data processing method - Google Patents
One kind is with brill gamma imaging data processing method Download PDFInfo
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- CN105545284B CN105545284B CN201510927599.8A CN201510927599A CN105545284B CN 105545284 B CN105545284 B CN 105545284B CN 201510927599 A CN201510927599 A CN 201510927599A CN 105545284 B CN105545284 B CN 105545284B
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- 238000003384 imaging method Methods 0.000 title claims abstract description 18
- 241001074085 Scophthalmus aquosus Species 0.000 title claims abstract description 14
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 239000000872 buffer Substances 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 238000013500 data storage Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 5
- 241001269238 Data Species 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001637516 Polygonia c-album Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention relates to one kind with brill gamma imaging data processing method, including：The gamma data that gamma detector acquires is put into extra buffer；Measure and calculate the azimuth information of each gamma detector at this time；Azimuth information is inserted in 8 or 16 sectors of corresponding extra buffer data；Each gamma detector vibration information is measured and handled, judges instrument status at this time：Slipping drilling or compound drilling；When gamma accumulated time reaches preset value, sector data is stored in the memory buffers FLASH, carries out data processing respectively；It, will be in buffer data storage to FLASH when the memory buffers FLASH are filled with.This method is utilized with the multiple detector measurements for boring azimuth gamma well-logging, and measurement data has azimuth characteristic, can be formed accurate formation azimuth natural gamma imaging, be provided multi-reservoir parameter evaluation.
Description
Technical field
The invention belongs to petroleum exploration logging fields, and in particular to the processing side for boring gamma Image-forming instrument gathered data
Method meets the imaging requirements of gamma, realizes the real-time geosteering of drilling well and formation evaluation.
Background technology
In recent years, as high angle hole and horizontal well are continuously increased, logging while drilling technology is quickly grown, and is provided with conventional logging
Material is compared, due to during measurement while drilling, metrical information is influenced very little by slurry compounding etc., can more objective reality
The practical geologic feature for reflecting stratum, good result is obtained in high angle hole and horizontal well, wherein with azimuth gamma well-logging is bored
It is that must survey project in external well logging.Since with azimuth gamma well-logging is bored using multiple detectors, measurement result has
Azimuth characteristic, other than the conventional gammas logging Applications such as identification lithology, calculating shale content, real-time transmission data can be used as ground
Matter is oriented to capsule information, and in addition the stratum natural gamma data of orientation detection can carry out imaging to stratum and show, can be over the ground
Layer is preferably evaluated.
It is similar with conventional gamma ray log principle with azimuth gamma well-logging principle is bored, all it is measurement stratum natural radiation
Property.It is being to utilize multiple detector measurements with azimuth gamma well-logging is bored, measurement data has azimuth characteristic, so that it may to form essence
True formation azimuth natural gamma imaging, provides multi-reservoir parameter evaluation.
Orientation gamma imaging is by the way that well week is divided into multiple sectors, by gamma detector in wellbore different direction
It measures, measured value is transformed into respective sectors, to realize the acquisition of different sectors data.Due to the particularity of gamma survey,
Error caused by order to reduce statistic fluctuation, it is necessary to which, as soon as being measured within the sampling period, this is it needs to be determined that a devise a stratagem
Measurement data in sampling period is transformed into each sector by calculation method, completes gamma imaging data body.
Invention content
The object of the present invention is to provide one kind with gamma imaging data processing method is bored, using with brill azimuth gamma well-logging
Multiple detector measurements, measurement data has azimuth characteristic, can form the imaging of accurate formation azimuth natural gamma, provide
Carry multi-reservoir parameter evaluation.
The purpose of the present invention is what is realized by following technical proposals.
One kind is with brill gamma imaging data processing method, including step in detail below：
1) gamma data that gamma detector acquires is put into extra buffer；
2) azimuth information for measuring and calculating each gamma detector at this time, obtains the orientation of each gamma detector；
3) azimuth information for obtaining each gamma detector is inserted in 8 or 16 sectors of corresponding extra buffer data；
4) it measures and handles each gamma detector vibration information, judge instrument status at this time：Slipping drilling is multiple
Bench drill into；
5) when gamma accumulated time reaches preset value, sector data is stored in the memory buffers FLASH, for instrument
Residing different conditions carry out data processing respectively；
It 6), will be in buffer data storage to FLASH when the memory buffers FLASH are filled with.
Further, slipping drilling status data processing is carried out：
Position of each gamma detector under earth coordinates remains unchanged, and measures the gamma meter of well week different direction respectively
Digit rate, the conversion by gamma detector from instrument coordinates system to earth coordinates, the orientation gamma value to be needed pass through
Gamma detector actual measured value GR is transformed into the sector under earth coordinates by the algorithm of approximate calculation.
Further, the conversion by gamma detector from instrument coordinates system to earth coordinates is by the side of instrument coordinates system
Position is converted to the earth coordinates orientation needed in engineering.
Further, the GR values contribution of sector comes from each gamma detector measured value GR1, GR2 and GR3, establishes approximate meter
Calculate model：
GR=a*GR1+b*GR2+c*GR3
Wherein, a, b and c are weight coefficients, and size depends on spatial position residing for three gamma detectors.
Further, compound drilling status data processing is carried out：
Each gamma detector presses 8 or 16 sector gathered datas with orientation gamma is bored with brill orientation gamma detector, each
The angle that data acquire sector is 45 ° or 22.5 °, if the revolution that instrument rotates within a sampling interval is R, in certain number
According to acquisition sector SiIt is counted as in (i=1~8 or 1~16)：
Ni=(D1m+D2n+D3q)*R
Wherein, D1m、D2n、D3qRespectively gamma detector is in SiThe data of (i=1~8 or 1~16) sector acquisition, wherein
Number 1,2,3 represents detector number, and m, n, q are respectively represented for Si1,2,3 corresponding position of Sector Finder.
The present invention realizes that the conversion under above method state includes：
(1) under slipping drilling state, the present invention uses the algorithm of approximate calculation, realizes that gamma survey data are sat by instrument
Conversion of the mark system to earth coordinates.
(2) under compound drilling state, according to detector principle and magnetic force meter systems, detector measurement value is completed to well week
The data conversion of 8/16 sector.
Invention is a kind of with brill gamma imaging logging data processing method.In drilling process, due to underground gamma detector
It is uncertain to measure orientation, detector measurement data cannot react accurate azimuth information, need according to magnetic force meter systems to well week
Gamma detector measurement data is carried out analysis calculating by the measurement in orientation.Computational methods provided by the invention, can be by each detection
Device gamma survey value is accurately assigned in well week different sectors, instructs the real-time geosteering of drilling well, improves oil gas Drilling ratio.
Description of the drawings
Fig. 1 is approximate calculation schematic diagram；
Fig. 2 is 8 sector schematic diagrames.
Specific implementation mode
Below by specific embodiment, the present invention will be further described.
One kind is with brill gamma imaging data processing method, including step in detail below：
1) acquisition gamma data is put into extra buffer.
2) azimuth information at this time is measured and calculated, the orientation of each gamma detector is obtained.
3) extra buffer data are inserted according to obtained azimuth information in corresponding 8 (or 16) sector；
4) simultaneously process instrumentation vibration information is measured, judges instrument status at this time：Slipping drilling or compound drilling；
5) when gamma accumulated time reaches preset value, sector data is stored in the memory buffers FLASH, for difference
State carries out data processing respectively：
I) slipping drilling：Three positions of (or the four) detector under earth coordinates remain unchanged, and measure well respectively
The Gama Count rate of all different directions, since detector measurement value is the orientation of instrument coordinates system, and it is desirable that big in engineering
Ground coordinate system orientation, it is necessary to coordinate system conversion is carried out, the conversion by gamma survey device from instrument coordinates system to earth coordinates,
Orientation gamma value (as shown in Fig. 1) to be needed, by the algorithm of approximate calculation by instrument actual measured value (GR1-
3) it is transformed into the sector under earth coordinates (GR 1. -4.).By sector 1. for, by the GR value tributes of in figure it is found that sector 1.
It offers and comes from GR1, GR2 and GR3,1. GR is worth depending on GR1, GR2 and GR3 respectively to sector 1. contribution.Establish approximate meter
Calculate model：
GR 1.=a*GR1+b*GR2+c*GR3
Wherein, a, b and c are weight coefficients, and size depends on spatial position residing for three detectors.
Can similarly calculate the GR of remaining sector 2., 3. 4. GR is worth with GR.
When instrument is four detectors, can similarly be calculated.
II) compound drilling：
Three detectors press a sector gathered data in 8 (or 16) with orientation gamma is bored with brill azimuth gamma well-logging instrument, each
The angle that data acquire sector is 45 ° (or 22.5 °), and it is as shown in Fig. 2 that data acquire sector.
Respectively data recording sector indicates for 1 three detector of table, eight sector
| D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D31 | D32 | D33 | D34 | D35 | D36 | D37 | D38 |
D in table 1mnIndicate m-th of detector with oneself initial position in n-th of sector inside counting；Sector alignment serial number is
By arranged clockwise, detector serial number is by arranged counterclockwise.
If the revolution that instrument rotates within a sampling interval is R, it is counted as in Sl data acquisition sector：
N=(D11+D24+D36)*R
The counting in all data acquisitions sector can be similarly obtained, the acquisition of well week 8 (or 16) sector data is completed.
When instrument is four detectors, can similarly be calculated.
It 6), will be in buffer data storage to FLASH when the memory buffers FLASH are filled with.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation mode of the present invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from present inventive concept, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by institute
Claims of submission determine scope of patent protection.
Claims (4)
1. a kind of with brill gamma imaging data processing method, which is characterized in that including step in detail below：
1) gamma data that gamma detector acquires is put into extra buffer；
2) azimuth information for measuring and calculating each gamma detector at this time, obtains the orientation of each gamma detector；
3) azimuth information for obtaining each gamma detector is inserted in 8 or 16 sectors of corresponding extra buffer data；
4) it measures and handles each gamma detector vibration information, judge instrument status at this time：Slipping drilling or composite drill
Into；
5) when gamma accumulated time reaches preset value, sector data is stored in the memory buffers FLASH, residing for instrument
Different conditions carry out data processing respectively；
It 6), will be in buffer data storage to FLASH when the memory buffers FLASH are filled with；
Carry out slipping drilling status data processing：
Position of each gamma detector under earth coordinates remains unchanged, and measures the Gama Count of well week different direction respectively
Rate, the conversion by gamma detector from instrument coordinates system to earth coordinates, the orientation gamma value to be needed, by close
Gamma detector actual measured value GR is transformed into the sector under earth coordinates like the algorithm of calculating.
2. according to claim 1 a kind of with brill gamma imaging data processing method, which is characterized in that by gamma detector
It is that the orientation of instrument coordinates system is converted into the geodetic coordinates needed in engineering from instrument coordinates system to the conversion of earth coordinates
It is orientation.
3. according to claim 1 a kind of with brill gamma imaging data processing method, which is characterized in that the GR value tributes of sector
It offers and comes from each gamma detector measured value GR1, GR2 and GR3, establish Approximate computing model：
GR=a*GR1+b*GR2+c*GR3
Wherein, a, b and c are weight coefficients, and size depends on spatial position residing for three gamma detectors.
4. according to claim 1 a kind of with brill gamma imaging data processing method, which is characterized in that carry out compound drilling
Status data processing：
Each gamma detector presses 8 or 16 sector gathered datas, each data with orientation gamma is bored with brill orientation gamma detector
The angle for acquiring sector is 45 ° or 22.5 °, if the revolution that instrument rotates within a sampling interval is R, is adopted in some data
Collect sector SiInterior is counted as：
Ni=(D1m+D2n+D3q)*R
Wherein, D1m、D2n、D3qRespectively gamma detector is in SiThe data of sector acquisition, i=1~8 or 1~16；Wherein number 1,
2,3 represent detector number, and m, n, q are respectively represented for Si1,2,3 corresponding position of Sector Finder.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625844B (en) * | 2017-03-17 | 2024-06-25 | 中国石油化工集团有限公司 | Gamma calibration and testing device |
| CN111852451B (en) * | 2020-07-29 | 2023-04-25 | 江苏达坦智慧能源有限公司 | Drilling three-dimensional imaging system |
| CN114385971A (en) * | 2020-10-16 | 2022-04-22 | 中石化石油工程技术服务有限公司 | Multi-sector data correction method and system for while-drilling gamma imaging |
| CN113377756B (en) * | 2021-06-21 | 2022-06-28 | 杭州丰禾石油科技有限公司 | Gamma counting rate calculation method and device, storage medium and electronic equipment |
| CN113482596B (en) * | 2021-08-11 | 2023-09-15 | 江苏达坦智慧能源有限公司 | Real-time three-dimensional gamma imaging data processing method based on LWD while-drilling instrument |
| CN113530527B (en) * | 2021-08-12 | 2023-09-15 | 江苏达坦智慧能源有限公司 | Single-detector-based azimuth-while-drilling gamma imaging data processing method |
| CN114635690B (en) * | 2021-09-29 | 2024-04-30 | 中国石油天然气集团有限公司 | Near bit while-drilling measurement method, system, apparatus and computer readable storage medium |
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| US7432500B2 (en) * | 2004-02-26 | 2008-10-07 | Baker Hughes Incorporated | Azimuthal binning of density and porosity data |
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| CN102707325A (en) * | 2012-05-28 | 2012-10-03 | 中国石油大学(华东) | Azimuth gamma measuring method and equipment |
| CN104379869A (en) * | 2013-06-14 | 2015-02-25 | 雷米技术有限责任公司 | Multiple gamma controller assembly |
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